Universal Process to Test Units of Application
In terms of programming, unit testing is defined as an approach that is used to validate and verify the individual unit of source codes are working properly or not. A unit code is a smallest part that are isolated from the program code to test its functionality and to identify its relation with the whole code within the application.
In Unit testing a written contract is provided to the developer that specifies that the code must satisfy the client needs as a result of this it leads to the several benefits. The aim of the unit testing approach is to separate each part of the code into the individual units and to show that they are working properly as per the requirement of the client.
Unit testing allows the developer/programmer to write the test cases along with developing the source code, both at the same time. The process of writing test cases for all the methods and functions involved in the code so that whenever an error or fault occur in code it can be quickly identified and fixed at the same time.
The readily available unit test cases benefits the developers to check the same code in later time also to ensure the client that the unit codes is still working as it was working before time. Unit testing tools also helps the developers by simplifying the integration as it eliminates the uncertainty condition from the unit codes and can be used in bottom-up testing approach.
As we all know that in any type of testing will not give you an assurance that it will fetch any type of error or fault of the code. Same case with the unit testing approach. In unit testing we can check only the functionality of the unit codes with in the application. It might not be able to fetch any performance issues or integration errors of the code.
These are the limitations of the unit testing that comes in the way. But this is not an obstacle on the way of unit testing as the developers can use testing along with the conjunction with other software testing methods to check all other activities. The another limitation of this process is that it also helps to show the presence of the faults/errors/bugs to the developers, it is not able enough to show the absence of the errors in the code like all the other software testing procedures.
To obtain the desired results from the unit testing or any other software testing approach it is necessary to keep a record throughout the development process that is going on in making an application. It is an essential thing to keep a track of all the records at the time of development of the code to maintain the discipline that is needed while innovating any new software/application.
Keep the record of the development as well as of the changes made in the code at certain time period as it helps the developer in later also. Implementation of the suitable process for ensuring the client that the further test failures will be reviewed at once and at that time only proper changes will be made to again begin the working of the application. These testing tools will provide a great help to the programmers.
